Boob shock for Beyonce

Please avoid exposing bare flesh under curves of the buttocks and buttock crack

An email

The star, 31, right, and fell-ow nominees were ordered to cover up or face the wrath of prudish TV execs.

Pop sexpots such as Rihanna, 24, and Pink, 33, were also banned from flashing the flesh.

A blunt email to performers read: “Please be sure that buttocks and female breasts are adequately covered.

“Please avoid exposing bare flesh under curves of the buttocks and buttock crack.”

The memo is a bid to stop stars breaching broadcasting rules at Sunday’s live show.

Katy Perry, 28, and Taylor Swift, 23, were among the babes told their sizzling curves would not be welcomed on British screens. It continued: “Please avoid sheer see-through clothing that could possibly expose female breast nipples.

“Please be sure the genital region is adequately covered.”

Standards and Practises staff at CBS were also keen to clamp down on stars with dirty language on their clothes.